Formation of the Solar System Study Guide
1.A ______________ is a bowl shaped depression that forms when an object strikes the surface
2.The shape of the Earth’s orbit around the sun is called an ____________________.
3.The sun and all of the planets and minor bodies that travel around it are called the
_______________ _______________--.
4.A _______________ is any of the primary bodies that orbit the sun.
5.__________________ and _________________ _______________ create craters on the Earth
and Moon surfaces.
6.The ________________ __________________ ___________________ is responsible for each
planets elliptical orbit around the sun.
7._____________________ _________________ is the hypothesis that our solar system was
formed from an enormous rotating cloud.
8.All terrestrial planets are _____________ and __________________.
9.Planet’s rings are made of __________________ __ ________ ______ _______.
10.Terrestrial planets are _______________ _______________than gas planets
11.A natural or artificial object orbiting the Earth or another planet is called a ______________.
12.The planets that are closer to the Sun are called _______________ ______________.
13._________________ are created by the gravitational pull of the on Earth, as well as the
movement of Earth and the moon around each other
14.A _______________ is a meteoroid that __________________________________________-
15.An ___________________ happens when the shadow of one celestial body falls on another
celestial body.
16.Meteorites are good sources of information concerning the age of the Solar System because
they are____________________________________________________________________
17.Oxygen became more prevalent in the Earth’s atmosphere because of
___________________________
18.____________% of the solar system’s mass is contained within the sun.
19.____________ ________________ are the largest planets.
20.Earth’s surface continues to change because its _________________________
21.Iron and Nickel, the denser materials when the Earth was formed ended up
______________________________
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